Question

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Answer 1

1. Air and water
2. Climate
3. Red Blood Cells
4. Tissues
5. Chemical Change

Answer 2

Explanation:

1. A forest is a purifier of air and water.
2. The average weather taken over a long time is called climate.
3. Haemoglobin is present in red blood cells.
4. Combination of two more cells is called battery.
5. Burning of wood is a chemical change.

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